disable FB

hc

2024-01-04 1543e317f1da31b75942316931e8f491a8920811

 kernel/drivers/iio/gyro/itg3200_core.c
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@@ -1,3 +1,4 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * itg3200_core.c -- support InvenSense ITG3200
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  *                   Digital 3-Axis Gyroscope driver
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@@ -5,10 +6,6 @@
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  * Copyright (c) 2011 Christian Strobel <christian.strobel@iis.fraunhofer.de>
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  * Copyright (c) 2011 Manuel Stahl <manuel.stahl@iis.fraunhofer.de>
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  * Copyright (c) 2012 Thorsten Nowak <thorsten.nowak@iis.fraunhofer.de>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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  *
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  * TODO:
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  * - Support digital low pass filter
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@@ -18,7 +15,6 @@
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 #include <linux/interrupt.h>
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 #include <linux/irq.h>
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 #include <linux/i2c.h>
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-#include <linux/gpio.h>
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 #include <linux/slab.h>
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 #include <linux/stat.h>
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 #include <linux/module.h>
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@@ -157,7 +153,7 @@
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 					  t);
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 		mutex_unlock(&indio_dev->mlock);
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-	return ret;
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+		return ret;
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 	default:
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 		return -EINVAL;
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@@ -242,6 +238,20 @@
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 	return ret;
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 }
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+static const struct iio_mount_matrix *
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+itg3200_get_mount_matrix(const struct iio_dev *indio_dev,
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+			  const struct iio_chan_spec *chan)
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+{
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+	struct itg3200 *data = iio_priv(indio_dev);
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+
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+	return &data->orientation;
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+}
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+
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+static const struct iio_chan_spec_ext_info itg3200_ext_info[] = {
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+	IIO_MOUNT_MATRIX(IIO_SHARED_BY_DIR, itg3200_get_mount_matrix),
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+	{ }
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+};
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+
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 #define ITG3200_ST						\
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 	{ .sign = 's', .realbits = 16, .storagebits = 16, .endianness = IIO_BE }
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@@ -255,6 +265,7 @@
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 	.address = ITG3200_REG_GYRO_ ## _mod ## OUT_H, \
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 	.scan_index = ITG3200_SCAN_GYRO_ ## _mod, \
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 	.scan_type = ITG3200_ST, \
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+	.ext_info = itg3200_ext_info, \
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 }
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 static const struct iio_chan_spec itg3200_channels[] = {
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@@ -297,10 +308,14 @@
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 	st = iio_priv(indio_dev);
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+	ret = iio_read_mount_matrix(&client->dev, "mount-matrix",
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+				&st->orientation);
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+	if (ret)
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+		return ret;
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+
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 	i2c_set_clientdata(client, indio_dev);
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 	st->i2c = client;
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-	indio_dev->dev.parent = &client->dev;
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 	indio_dev->name = client->dev.driver->name;
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 	indio_dev->channels = itg3200_channels;
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 	indio_dev->num_channels = ARRAY_SIZE(itg3200_channels);